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CVE-2017-7826
CRITICAL
Memory safety bugs were reported in Firefox 56 and Firefox ESR 52.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.
Published: Jun 11, 2018
Modified: Jun 17, 2026
CWE-119
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (17)
| Vendor | Product | Version |
|---|---|---|
| debian | debian_linux | 7.0 |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
| redhat | enterprise_linux_desktop | 6.0 |
| redhat | enterprise_linux_desktop | 7.0 |
| redhat | enterprise_linux_server | 6.0 |
| redhat | enterprise_linux_server | 7.0 |
| redhat | enterprise_linux_server_aus | 7.4 |
| redhat | enterprise_linux_server_eus | 7.4 |
| redhat | enterprise_linux_server_eus | 7.5 |
| redhat | enterprise_linux_workstation | 6.0 |
| redhat | enterprise_linux_workstation | 7.0 |
| canonical | ubuntu_linux | 17.10 |
| canonical | ubuntu_linux | 18.04 |
| mozilla | firefox | * < 57.0 |
| mozilla | firefox | * < 52.5.0 |
| mozilla | thunderbird | * < 52.5.0 |
GitHub Security Advisory GHSA-9g7r-5p3c-g4qg
Memory safety bugs were reported in Firefox 56 and Firefox ESR 52.4. Some of these bugs showed...
References (28)
- http://www.securityfocus.com/bid/101832 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039803 Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:3247 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:3372 Third Party Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1394530%2C1369561%2C1411458%2C1400003%2C1395138%2C1408412%2C1393840%2C1400763%2C1339259%2C1394265%2C1407740%2C1407751%2C1408005%2C1406398%2C1387799%2C1261175%2C1400554%2C1375146%2C1397811%2C1404636%2C1401804 Issue Tracking, Permissions Required, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/11/msg00018.html Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00001.html Third Party Advisory
- https://usn.ubuntu.com/3688-1/ Third Party Advisory
- https://www.debian.org/security/2017/dsa-4035 Third Party Advisory
- https://www.debian.org/security/2017/dsa-4061 Third Party Advisory
- https://www.debian.org/security/2017/dsa-4075 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-24/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-25/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-26/ Vendor Advisory
- http://www.securityfocus.com/bid/101832 Third Party Advisory, VDB Entry
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
3.30%
Top 13% most likely to be exploited
Threat Score
40.2 / 100
Data Sources
NVD
EPSS
GitHub